Android Open Source - wiki-contacts-android Multi Edit Text Form

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Back to project page wiki-contacts-android.

License

The source code is released under:

Apache License

Java Source Code

package com.kahkong.wikicontacts.form;
/*from  w  w w. j  a v  a 2 s . c om*/
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

import com.kahkong.wikicontacts.R;
import com.kahkong.wikicontacts.callback.Validator;

import android.content.Context;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.AttributeSet;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;

/**
 * 
 * @author Poh Kah Kong
 *
 */
public class MultiEditTextForm extends LinearLayout {
  private static final String NAMESPACE = "http://schemas.android.com/apk/res/android";
  
  private Context context;
  private Button addBtn;
  private List<EditText> editTexts = new ArrayList<EditText>();
  private int inputType;
  private Validator validator;
  private String[] errorMsgs;
  private boolean isSubmitted = false;

  public MultiEditTextForm(Context context, AttributeSet attrs) {
    super(context, attrs);    
    if (isInEditMode()) {
      return;      
    }
    
    this.context = context;
    inputType = attrs.getAttributeIntValue(NAMESPACE, "inputType", 1);
    init();
  }
  
  private void init() {
    LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View view = layoutInflater.inflate(R.layout.contact_edit_etbtn, null);
    addView(view);
    final EditText editText = (EditText) view.findViewById(R.id.editEditTextEtbtn);
    addBtn = (Button) view.findViewById(R.id.editButtonEtbtn);
    editText.setInputType(inputType);
    addBtn.setText("+");
    addBtn.setVisibility(View.INVISIBLE);
    editTexts.add(editText);    
  }
  
  public String[] getValues() {
    List<String> values = new ArrayList<String>();
    Iterator<EditText> iterator = editTexts.iterator();
    while (iterator.hasNext()) {
      String value = iterator.next().getText().toString();
      if (!value.equals("")) {
        values.add(value);
      }
    }
    if (values.isEmpty()) {
      return null;
    } else {
      return values.toArray(new String[values.size()]);
    }
  }
  
  public void setValues(String[] values) {
    if (values==null) {
      return;
    }
    editTexts.get(0).setText(values[0]);
    for (int i=1; i<values.length; i++) {
      addEditTextBtn();
      editTexts.get(1).setText(values[1]);
    }
  }
  
  public void setValidator(final Validator validator, final String[] errorMsgs) {
    this.validator = validator;
    this.errorMsgs = errorMsgs;
    
    editTexts.get(0).addTextChangedListener(new TextWatcher() {
      @Override
      public void afterTextChanged(Editable editable) {
        toggleAddBtn();
        if (!isSubmitted) {
          return;
        }
        isValidated(editTexts.get(0));
      }

      @Override
      public void beforeTextChanged(CharSequence s, int start, int count,
          int after) {
      }

      @Override
      public void onTextChanged(CharSequence s, int start, int before,
          int count) {
      }
    });
    
    addBtn.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View view) {
        addEditTextBtn();
      }
    });  
  }
  
  private void addEditTextBtn() {
    LayoutInflater layoutInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    final View view2 = layoutInflater.inflate(R.layout.contact_edit_etbtn, null);
    addView(view2);
    final EditText editText2 = (EditText) view2.findViewById(R.id.editEditTextEtbtn);
    Button button2 = (Button) view2.findViewById(R.id.editButtonEtbtn);
    editText2.setInputType(inputType);        
    editText2.requestFocus();
    button2.setText("-");
    addBtn.setVisibility(View.INVISIBLE);
    editTexts.add(editText2);
    
    editText2.addTextChangedListener(new TextWatcher() {
      @Override
      public void afterTextChanged(Editable editable) {
        toggleAddBtn();
        if (!isSubmitted) {
          return;
        }
        isValidated(editText2);
      }

      @Override
      public void beforeTextChanged(CharSequence s, int start, int count,
          int after) {
      }

      @Override
      public void onTextChanged(CharSequence s, int start, int before,
          int count) {
      }
    });

    button2.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View view) {
        editTexts.remove(editText2);
        removeView(view2);
      }
    });
  }
  
  public boolean submit() {
    isSubmitted = true;
    boolean isValidated = true;
    Iterator<EditText> iterator = editTexts.iterator();
    while (iterator.hasNext()) {
      EditText editText = iterator.next();
      if (!isValidated(editText)) {
        isValidated = false;
      }
    }
    return validator==null? true:isValidated;
  }
  
  private boolean isValidated(EditText editText) {
    int status = validator.validate(editText.getText().toString());
    if (status>0) {
      editText.setError(errorMsgs[status-1]);
      return false;
    } else {
      return true;
    }
  }
  
  private void toggleAddBtn() {
    boolean isAddable = true;
    Iterator<EditText> iterator = editTexts.iterator();
    Set<String> set = new HashSet<String>();
    while (iterator.hasNext()) {
      String value = iterator.next().getText().toString();
      if (value.equals("") || set.contains(value)) {
        isAddable = false;
      } else {
        set.add(value);
      }
    }
    if (isAddable) {
      addBtn.setVisibility(View.VISIBLE);
    } else {
      addBtn.setVisibility(View.INVISIBLE);
    }    
  }  
  
  public String getPrimaryValue() {
    return editTexts.get(0).getText().toString();
  }
  
  public void setPrimaryErrorMsg(int status) {
    if (status>0) {
      editTexts.get(0).setError(errorMsgs[status-1]);
    } else {
      editTexts.get(0).setError(null);
    }
  }
}

Java Source Code List

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